Evidence map›Paper›PMID 28118405›Full record

ArticlePloS one2017

Increased Gamma Brainwave Amplitude Compared to Control in Three Different Meditation Traditions.

Claire Braboszcz, B Rael Cahn, Jonathan Levy, Manuel Fernandez, Arnaud Delorme

2 registry-linked trialsAbstract readComparative Study
In one paragraph

Article in PloS one, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to 2 registered trials, which are not on this map. Cited by 77 papers.

0numbers the graph read from it
0cells of the map it votes in
77citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

NCT05026541 completednot on this mapstarted 2022, after this paper: background citation

Resilience to Sleep Deprivation and Changes in Sleep Architecture in Shoonya Meditators

TypeobservationalSponsorBeth Israel Deaconess Medical CenterRan2022 to 2026Enrolled72ConditionsSleep, Sleep Deprivation, Cognitive ChangeArmsNap Practitioners, Shoonya Meditation
NCT05564533 nacompletednot on this mapstarted 2023, after this paper: background citation

Neurophysiological Effects of Interoceptive Compassion Training

TypeinterventionalSponsorCambridge Health AllianceRan2023 to 2024Enrolled35ConditionsDepressionArmsHeart-Smile Training Intensive Introduction Program (HST-IIP)
3 · Its place in the literature

Who cites it

77 citing papers in PubMed.

  1. Article
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  14. EEG-Based Engagement Monitoring in Cognitive Games.Sensors (Basel, Switzerland) · 2025
    Article
  15. Article
  16. Intracranial substrates of meditation-induced neuromodulation in the amygdala and hippocampus.Proceedings of the National Academy of Sciences of the United States of America · 2025
    Article
  17. Review
  18. Article
  19. Article
  20. Article

17 more citing papers are in PubMed but not listed here.

4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

5 authors.

Claire BraboszczUniversité de Toulouse, UPS, Centre de Recherche Cerveau et Cognition, Toulouse, France.ORCID http://orcid.org/0000-0001-9572-6653
B Rael CahnUniversity of Southern California Department of Psychiatry, Los Angeles, California, United States of America.
Jonathan LevyCerCo, CNRS UMR5549, Toulouse, France.
Manuel FernandezMeditation Research Institute, Swami Rama Sadhaka Grama, Rishikesh, India.
Arnaud DelormeUniversité de Toulouse, UPS, Centre de Recherche Cerveau et Cognition, Toulouse, France.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Despite decades of research, effects of different types of meditation on electroencephalographic (EEG) activity are still being defined. We compared practitioners of three different meditation traditions (Vipassana, Himalayan Yoga and Isha Shoonya) with a control group during a meditative and instructed mind-wandering (IMW) block. All meditators showed higher parieto-occipital 60-110 Hz gamma amplitude than control subjects as a trait effect observed during meditation and when considering meditation and IMW periods together. Moreover, this gamma power was positively correlated with participants meditation experience. Independent component analysis was used to show that gamma activity did not originate in eye or muscle artifacts. In addition, we observed higher 7-11 Hz alpha activity in the Vipassana group compared to all the other groups during both meditation and instructed mind wandering and lower 10-11 Hz activity in the Himalayan yoga group during meditation only. We showed that meditation practice is correlated to changes in the EEG gamma frequency range that are common to a variety of meditation practices.

Indexed as

AdultAlpha RhythmArtifactsAttentionAwarenessCerebral CortexEye MovementsFemaleGamma RhythmHumansIndiaMaleMeditationMiddle AgedMuscle ContractionPsychometrics

Identifiers

PMID28118405
PMCPMC5261734

What OpenQuestion holds

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LicenceCC BY
Read underepoch 390

Registered trials

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.